mathjs/test/unit-tests/utils/bignumber/constants.test.js
Jos de Jong 6f00715754
Specify import require paths (continuation of #1941) (#1962)
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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
2020-09-20 18:01:29 +02:00

41 lines
1.6 KiB
JavaScript

// test bignumber utils
import assert from 'assert'
import BigNumber from 'decimal.js'
import { createBigNumberE, createBigNumberPhi, createBigNumberPi, createBigNumberTau } from '../../../../src/utils/bignumber/constants.js'
const Big32 = BigNumber.clone({ precision: 32 })
const Big64 = BigNumber.clone({ precision: 64 })
describe('bignumber', function () {
it('should calculate a bignumber e', function () {
assert.strictEqual(createBigNumberE(Big32).toString(),
'2.7182818284590452353602874713527')
assert.strictEqual(createBigNumberE(Big64).toString(),
'2.718281828459045235360287471352662497757247093699959574966967628')
})
it('should calculate a bignumber pi', function () {
assert.strictEqual(createBigNumberPi(Big32).toString(),
'3.1415926535897932384626433832795')
assert.strictEqual(createBigNumberPi(Big64).toString(),
'3.141592653589793238462643383279502884197169399375105820974944592')
})
it('should calculate a bignumber tau', function () {
assert.strictEqual(createBigNumberTau(Big32).toString(),
'6.283185307179586476925286766559')
assert.strictEqual(createBigNumberTau(Big64).toString(),
'6.283185307179586476925286766559005768394338798750211641949889184')
})
it('should calculate a bignumber phi', function () {
// FIXME: round-off error
// assert.strictEqual(bignumber.phi(32), '1.6180339887498948482045868343656')
assert.strictEqual(createBigNumberPhi(Big32).toString(),
'1.6180339887498948482045868343657')
assert.strictEqual(createBigNumberPhi(Big64).toString(),
'1.618033988749894848204586834365638117720309179805762862135448623')
})
})